How does skin defend the body against pathogens? A. It destroys pathogens with digestive acids.
B. It produces white blood cells that attack pathogens.
C. It blocks pathogens from getting inside the body.
D. It uses tiny hairs to trap pathogens.

C. Because skin acts like a barrier that doesn’t allow pathogens or other micro organisms to enter unless their is a cut, scratch, etc. on your skin.

Anions are negative charged ions

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy